Grafton Group plc is an independent company that operates in the merchanting, retailing and mortar manufacturing markets in Britain, Ireland and Belgium.

It operates in three segments: Merchanting, DIY Retailing and Dry Mortar Manufacturing.

The Merchanting segment is engaged in the distribution of building and plumbing materials primarily to professional trades people engaged in residential repair, maintenance and improvement projects and also in residential and other new build construction.

The DIY Retailing segment incorporates the largest DIY retailing business in Ireland and has stores primarily under the woodie's DIY brand and store kitchen business that trades under the in-house and panelling centre.

The Dry Mortar Manufacturing segment incorporates the largest dry mortar business in Britain and engages in residential and commercial construction projects.

The company was founded by William Thomas Chadwick in 1902 and is headquartered in Dublin, Ireland.